Micro Star 1000
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this prevents the rotor plane tilting excessively in forward flight. In model helicopters a single
hinge shared by both blades has proved an effective solution to the problem.
Auto-rotation
This term refers to a helicopter flying without motor power. The rotational speed of the main rotor
can be kept high by setting both blades to negative pitch; the airflow through the rotor then
keeps the blades turning at high speed as the machine descends. The rotational energy stored
in the rotor by this means can be converted into upthrust if the pilot applies positive collective
pitch when the helicopter is close to the ground. Of course, this can only be carried out once,
and it has to be done at the correct moment. Auto-rotation allows a model helicopter to land
safely when the motor fails, just like a full-size machine.
However, auto-rotation places considerable demands on the pilot’s judgement and reflexes; you
can only halt the machine’s descent once, and you must not “flare” too early or too late. Plenty of
practice is required to get it right.
Summary of Contents for Micro Star 1000
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